I skimmed the nameNote field for 1871 to 1920 and noticed problems for
George Daisey and Harry Jacoby. (The nameNote field is literally
displayed on the baseball-reference player pages, in italics below the
player name.)
lahmanID playerID nameNote
3201 daisege01 born
6873 jacobha01 Harry M.
The latter is probably a nameGiven upgrade from "Harry" alone.
Paul Wendt